Dark roast means that the coffee bean has been roasted to a higher temperature and for a longer period of time than in light roast.

Inasmuch as it is impossible to analyze the contents of an entire interpersonal relationship, it is helpful to conceptualize a given communication event as consisting of a series of subevents. Any one subevent may be pulled out as a basic unit for analysis in the study of interpersonal communication; this basic unit may then be called an interact. […] each interact is a distinctive attempt to conceal, repeat, or disclose information and/or to influence the relationship.

He tried to glare threateningly, but how much of a threat can you be when you are naked AND tied to a bed?

technologists (the so-called Eggheads) all over the world were trying to make publicly utile and commercially rewarding the extremely elaborate and still very expensive, hydrodynamic telephones and other miserable gadgets […]